Prediction of SCC Formwork Pressure in Full-Scale Elements

Various prediction models, based on experimental results to evaluate formwork pressure exerted by self-consolidating concrete were established based on extensive laboratory evaluation. The models are based on the measurements of the structural build-up of the concrete with rest time and placement characteristics of the concrete. The latter includes the rate of rise of the concrete in the formwork, concrete temperature, and minimum dimension of the formwork. This paper presents the results of two campaigns of field validation carried out at Sherbrooke, Quebec, and Skokie, Illinois, to validate the prediction models. The results confirm that the established models offer adequate prediction of form pressure exerted by self-consolidating concrete.